The _Squirrell_, when shee must goe seeke her food, By making passage through some neighb’ring _flood_, (And feares to be devoured by the Streame) Thus, helpes her weaknesse, by a _Stratagem_. On _blocks_, or _chips_, which on the waves doe flote, She nimbly leaps; and, making them her boate (By helpe of Windes, of Current, and of Tide) Is wafted over to the further side. Thus, that, which for the _Body_ proves unfit, Must often be acquired by the _Wit_. And, what our outward _Fortunes_ shall denye, Our _providence_ must labour to supply. Those _Casualties_, which may our need befriend, We should with heedfull diligence attend; And, watch to seize those _opportunities_, Which, men of abler fortunes may despise. Some Birds, when they an _Oyster_ would unlock, Mount up, and let it fall upon a Rock; And, when the Cockles on the Shores lye gasping, (At ev’ry Tides approach their Shells unclasping) Crowes cast in _Pebles_, and so take that meat By _craft_, which by their _force_ they could not get. Wee, by indeav’ring thus, may gaine, at length, That, which at first appeares above our strength. By little _Screwes_ an entrance we may make, Where _Barres of Iron_ cannot passage breake. Small _Engines_, lift huge weights; and, we have heard, That one _Wise-man_ (though poore without regard) May save a City, when the _Men of Warre_, And, all their _Captaines_, at a _non plus_ are. _To =Kings=, both =Sword= and =Mace= pertaine; And, these they doe not beare in vaine._ [Illustration: NON SINE CAUSA. ILLVSTR. III. _Book. 3_]